@book { GermanistikinPolen,
    title = "Germanistik in Polen",
    author = "Andrzej {Katny} and Katarzyna {Lukas}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1108266"
}